1. MISUG TAC Update Jackie Ashbaugh ERCOT 4/7/2011

2. 2 TAC4/7/2011 03/31/2011 Meeting Continued to focus on the high priority items from MISUG task list: –Review task list prioritization –NPRR329 Security Classification Changes status –SCR761 Provide Price Republication Notifications via API and Provide Price Corrections via XML – provided feedback to WMS –Priority 1 Dashboard Requirements Review (NPRRs & SCRs for submission): Draft NPRR –System Ancillary Service Capacity Monitor Dashboard Change security classification to Public Draft SCRs –Promotion of Select MIS Secure Dashboards to Public Domain –Public Aggregated Wind Dashboard

3. 3 TAC4/7/2011 03/31/2011 Meeting continued –Alerts/Notifications review requested: Turn off 4 alerts (Adjustment window open/close, Mkt closed, duplicate two hr output scheduled failed) Update 15 alerts/notices (conditions, text language) Send 3 new alerts (SCED complete, SPPs available) –Collected market requirements for new reports Total and Groupings of Wind Output Report (new from dashboard discussion) Daily Grid Operations Report (#12) Monthly TDSP Load by LSE Report (#55) Sum of HDLs/LDLs Report (#48) Unconfirmed Trades Report (#29)

4. 4 TAC4/7/2011 Review status of SCRs and NPRR submitted on behalf of MISUG –NPRR 329Security Classification Changes –New submissions – 2 SCRs/1 NPRR dashboard changes Review NPRRs/SCRs for submission for alerts/notifications where requirements were collected at the 3/31/2011 meeting Review NPRRs for submission for new reports where requirements were collected at the 3/31/2011 meeting – Total and Groupings of Wind Output Report (new from dashboard discussion) – Daily Grid Operations Report (#12) – Monthly TDSP Load by LSE Report (#55) – Sum of HDLs/LDLs Report (#48) – Unconfirmed Trades Report (#29) New Reports – collect requirements –HRUC after approval Report (#4) – RUC VDI –DC Tie Schedules Report (#56) –Historical Load Zone/Hub Price Report (#9) –Load Reporting (#66) April Meeting Topics

5. 5 TAC4/7/2011 For Reference: Market Data Transparency February Statistics

6. 6 TAC4/7/2011 ERCOT Website Page Views – February 2011

7. 7 TAC4/7/2011 External Web Services Market Transactions – February 2011

8. 8 TAC4/7/2011 External Web Services Market Info Reports – February 2011

9. 9 TAC4/7/2011 External Web Services Alerts/Notifications – February 2011

10. 10 TAC4/7/2011 External Web Services Alerts/Notifications – February 2011

11. 11 TAC4/7/2011 Market Extract & Report Postings – February 2011

12. 12 TAC4/7/2011 Top 10 Market Extract & Report Postings – February 2011

13. 13 TAC4/7/2011 Market Extract & Report Downloads – February 2011

14. 14 TAC4/7/2011 Top 10 Market Extract & Report Downloads – February 2011

15. 15 TAC4/7/2011 Questions